*{
    margin: 0;
    padding: 0;
}

body,html{
    width: 100%;
    height: 100%;
}
.nav-box{
    width: 200px;
    background: rgb(50, 65, 87);
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    overflow-y: auto;
    padding-top: 40px;
}
.nav-box ul{
    list-style: none;
    line-height: 50px;
    font-size: 14px;
    color: #ddd;
}
.nav-box ul .nav-block{
    padding-left: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    flex-wrap: wrap;
    position: relative;
    font-size:20px;
    padding-top: 10px;
    margin-top: 20px;
}
.nav-two a:link{
    color: #fff;

}

.nav-box ul .nav-block:hover{
    color: #fff;
    background: rgb(40, 52, 70);
}
.nav-box ul li i{
    display: inline-block;
    width: 40px;
    height: 40px;
}
.nav-box ul li i.arrow{
    position: absolute;
    top: 5px;
    right: 5px;
}


.nav-box .nav-block.on i.arrow{
    transform: rotate(0deg);
}
.nav-box .nav-two{
    display: block;
    width: 100%;
    font-size: 13px;
    line-height: 45px;
    display: none;
}
.nav-block.on+ul.nav-two{
    display: block;
}
.nav-box .nav-two li{

    padding-left: 38px;
    cursor: pointer;
}
.nav-box .nav-two li:hover{
    background: rgb(40, 52, 70);
}
.header{
    border: solid 1px black;
    width: 1800px;
    height: 60px;
    background: green;
    
}
.header h1{
    text-align: center ;
    font-size: 50px;
    font-family: 隶书;
    letter-spacing: 20px;
    position: relative;
}
.return {
    width:600 px;
    height: 30px;
    position: absolute;
    top: 20px;
    left: 1550px;
    font-size: 30px;
}
.return a{
    text-decoration: none;
}    
:root {
    --primary-color: #3498db;
    --danger-color: #e74c3c;
    --success-color: #2ecc71;
    --text-color: #2c3e50;
    --bg-color: #f8f9fa;
}
body {
    font-family: 'Segoe UI', system-ui;
    background-color: var(--bg-color);
}
:root {
    --primary-color: #2563eb;
    --secondary-color: #3b82f6;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
}
body {
    font-family: 'Segoe UI', system-ui, sans-serif;
    background: var(--bg-color);
    color: #1e293b;
    line-height: 1.6;
}
.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.avatar-uploader {
    position: relative;
    width: 120px;
    margin: 0 auto;
}
.upload-mask {
    position: absolute;
    bottom: 0;
    right: 0;
    background: rgba(0,0,0,0.5);
    border-radius: 50%;
    padding: 8px;
    cursor: pointer;
    transition: opacity 0.3s;
}
.upload-mask:hover {
    opacity: 0.8;
}
.upload-input {
    display: none;
}
/* 用户概览卡片 */
.profile-card {
    background: var(--card-bg);
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    padding: 2rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 2rem;
}
.avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #e2e8f0;
}
.profile-info h1 {
    margin: 0;
    font-size: 1.8rem;
}
.profile-meta {
    color: #64748b;
    margin-top: 0.5rem;
}
/* 导航菜单 */
.settings-nav {
    background: var(--card-bg);
    border-radius: 1rem;
    padding: 1rem;
    margin-bottom: 2rem;
}
.nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 2rem;
}
.nav-link {
    color: #64748b;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
}
.nav-link.active {
    background: #eff6ff;
    color: var(--primary-color);
}
/* 设置模块 */
.settings-section {
    background: var(--card-bg);
    border-radius: 1rem;
    padding: 2rem;
    margin-bottom: 2rem;
}
.section-header {
    border-bottom: 1px solid #e2e8f0;
    padding-bottom: 1rem;
    margin-bottom: 2rem;
}
.section-header h2 {
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
/* 表单元素 */
.form-group {
    margin-bottom: 1.5rem;
}
.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}
.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #cbd5e1;
    border-radius: 0.5rem;
    transition: border-color 0.3s ease;
    margin-bottom: 15px;
}
.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}
/* 安全验证状态 */
.verification-badge {
    display: inline-flex;
    align-items:center;
    gap: 0.5rem;
    padding:0.25rem  0.75rem;
    border-radius: 1rem;
    background: #dcfce7;
    color: #15803d;
}
/* 按钮样式 */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
}
.btn-primary {
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    color: white;
}
.btn-secondary {
    background: #e2e8f0;
    color: #1e293b;
}
/* 响应式设计 */
@media (max-width: 768px) {
    .profile-card {
        flex-direction: column;
        text-align: center;
    }
    .nav-list {
        flex-direction: column;
        gap: 0.5rem;
    }
}
.resume-builder{
    margin-left: 300px;
    font-size: 20px;
}

